refactor(header): resolve non-canonical PartialOrd implementation

Author: tottoto

src/header/value.rs

@@ -629,7 +629,7 @@ impl Eq for HeaderValue {}
 impl PartialOrd for HeaderValue {
     #[inline]
     fn partial_cmp(&self, other: &HeaderValue) -> Option<cmp::Ordering> {
-        self.inner.partial_cmp(&other.inner)
+        Some(self.cmp(other))
     }
 }